Astronomers have divided the planets into two groups. The inner, “terrestrial,” planets are Mercury, Venus, Earth, and Mars. The outer, “Jovian,” planets are Jupiter, Saturn, Uranus, and Neptune. Which statement best compares the differences between the inner and outer planets? A. The outer planets are warmer and larger than the inner planets.
B. The inner planets have rings and are cooler than the outer planets.
C. The inner planets are warmer and relatively small compared to the outer planets.
D. The outer planets have rings and are larger and warmer than all of the inner planets.

Explain

Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (mpg). heavier cars tend to have lower fuel efficiencies (lower mpg ratings). which variable (weight or fuel efficiency) is most naturally considered the explanatory (predictor) variable in this context?

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.